National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Partly Cloudy

62°F

17°C

Humidity 60%
Wind Speed S 8 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 16 May 7:51 pm EDT
Extended Forecast for

Yarmouth ME

  • Tonight

    Tonight: Showers likely, mainly before 2am. Cloudy during the early evening, then gradual clearing, with a low around 54. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Sunny, with a high near 78. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 64. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. South wind around 5 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 10pm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly before 2am. Cloudy during the early evening, then gradual clearing, with a low around 54. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Sunny, with a high near 78. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Increasing clouds, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 64. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 49. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 84.
Wednesday Night
A 40 percent chance of showers before 10pm. Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth ME
 43.81°N 70.2°W (Elev. 52 ft)
Last Update:
8:17 pm EDT May 16, 2026
Forecast Valid:
8pm EDT May 16, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation